Process of closing jars.



W. H. RO YSTONE.

PROCESS OF CLOSING JARS.

APPLIOATION FILED 00123, 19-11.

1,047,302, Patented Dec 17,1912.

. Snventor witnesses r t O S WM attorney COLUMBIA PLANOGRAPH 410., WASHINGTON, D. c

U N I TED STATES PATENT OFFICE.

WILLIAM H. ROYSTONE, OF SCRANTON, PENNSYLVANIA, ASSIGNOR TO JOHN GATHCART, OF NEWBURGI-I, NEW YORK.

PROCESS OF CLOSING JARS.

To all whom it may concern:

Be it known that I, VILLIAM H. ROY- STONE, a citizen of the United States, resid-- ing at Scranton, in the county of Lackawanna and State of Pennsylvania, have invented certain new and useful Improvements in Processes of Closing Jars; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to process of closing filled jars and has for an object the production of improved impervious airtight closures for jars, cheaply applied and quickly and easily removed.

A further object of the invention is to provide a closure for filled jars comprising a sheet of absorbent or pervious paper coated upon both sides with an impervious coating, such formation being applied and constructed directly upon the jar itself.

With these and other objects in view the invention comprises certain novel steps and acts in process for closing jars, as will be hereinafter more fully described and claimed.

In the drawings :Figure 1 is a perspective view of a jar having one of the closures applied thereto. Fig. 2 is a top plan View of one of the closures. Fig. 3 is a sectional view taken on line 33 of Fig. 2.

Like characters of reference indicate corresponding parts throughout the several views.

It is well known that in the sealing of jars containing material which will evaporate or deteriorate in any manner from ex* posure to the atmosphere the application of a coating of impervious wax, such, for instance, as paraffin is highly beneficial. The application of such a wax coating, however, while easily applied is diificult to remove as unless the wax is applied very thickly it breaks and crumbles in the removal.

The present invention consists in employing a disk 10 of porous or pervious paper having at one side an extension or ear 11. In applying the closure the filled jar, shown at 12, is provided with a coating of the wax 13 directly upon the top of the contents, in any approved manner as by inverting the jar and dipping the top into the wax bath,

Specification of Letters Patent.

Application filed October 23, 1911.

Patented Dec. 1'7, 1912.

Serial No. 656,143.

if the contents of the jar will permit such inversion. While the wax is still hot and soft the paper disk 10 is impressed into such wax so that the porous paper absorbs a portion of such wax. The jar is, however, provided with a second coating upon the exterior of the paper such exterior coating being shown at 14 and applied in like manner and likewise impregnating the pervious construction of the paper so that the entire cover, consisting of the pervious sheet 10, the under coating of wax 13 and the outer coating of wax 14, becomes practically an integral mass consisting of an interlying pa per with coatings of wax upon both sides, the wax of course also covering the edges of the jar and thoroughly sealing the same by reason of the manner in which it is applied, as distinguished from simply cutting such a disk as shown at Fig. 2 from waxed paper and laying it on the top of the jar.

In other words, the present invention comprises the construction immediately upon the jar itself of a waxed paper closure which can be removed readily from the jar by grasping the ear 11 and simply lifting the sheet loose from the jar which takes away all of the wax, leaving the contents of the jar exposed in perfectly clean, unobstructed condition.

I claim:

1. The herein described process of closing a jar consisting in applying a coating of wax reduced to adhesive condition to the top of the jar, said wax covering the edges of the jar, applying a porous sheet of material to the wax while in adhesive condition, and applying a coating of wax upon the exterior of such sheet.

2. The herein described process of closing a jar consisting in applying a coating of melted wax to the top of the jar to cover the contents and the edges of the jar, applying a pervious sheet to the wax while still in a melted condition, and applying an outer coating of melted wax to cover the pervious sheet and the edges of the jar.

3. The herein described process of closing a jar consisting in applying a coating of melted wax to the top of the jar, covering the contents and the edges of the jar, applying a sheet of pervious material cut to substantially fit the jar and with an ear extending beyond the periphery of the jar, and

applying a second coating of melted Wax to cover the pervious sheet and the edges of the ar. J 4. The herein described process of closing a-jar consisting in inverting a j ar in a bath of melted Wax to apply a coating of Wax to the contents and extending over the edge of the jar, applying a sheet of pervious material to the Wax While still in a melted condition, and again inverting the jar in a bath of melted Wax to cover the exterior of the sheet and the edges of the jar.

5. The herein described process of closing a jar consisting in applying Wax in a fluid condition directly upon the top of the contents of the jar and covering the edges of the jar, applying a porous sheet of material to the Wax While still molten, and applying a second coating of molten Wax upon the exterior of such porous sheet.

In testimony whereof I aflix mysignature in presence of tWo Witnesses.

WILLIAM H. ROYSTONE. Witnesses:

ALBERT L. WATSON, ISABEL WEBBER,

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, 

